Why would this be practical? Do you know what a white elephant gift is? Wikipedia: "A white elephant is an idiom for a valuable but burdensome possession of which its owner cannot dispose and whose cost (particularly cost of upkeep) is out of proportion to its usefulness or worth." Get with it.
You can usually transfer it to another user on the same registrar. They just don't want to lose it to another company. (At least, that's my super rough understanding of it.)